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to phrases
行信号
mil., air.def.
line signal
行信号
:
115 phrases
in 15 subjects
Air defense
11
Automobiles
5
Aviation
11
Communications
2
Construction
2
Electronics
5
General
7
Information technology
2
Oil / petroleum
2
Securities
1
Shipbuilding
1
Space
4
Sports
1
Technology
57
Telecommunications
4
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